Early 20th century single stone emerald and diamond cluster ring, English c,1905, the Colombian square step-cut emerald of approximately 1.50ct,

Early 20th century single stone emerald and diamond cluster ring, English c,1905, the Colombian square step-cut emerald of approximately 1.50ct,
Price: £10,000-£20,000
Ref No. 05351
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Description
set within a border of old round cut diamonds, open set in platinum and gold, accompanied by Gem & Pearl Lab report no. 23949 for the emerald giving a Colombian origin opinion and that the stone shows evidence of minor clarity enhancement ('minor oil')
Cluster: 1.1cm x 1.1cm
Weight: 2.5g
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